Born in the 25th century, Eobard Thawne was born to unnamed parents who genetically engineered with certain physical qualities (mostly his appearance) and high intelligence. However, his parents worried about his daydreaming and lack of social skills as he grew up, which made him something of an outsider in their highly regimented society. His parents believed that a sibling would help him and eventually Eobard had a little brother named Robern.

Instead, Eobard struggled to manage his brother and occassionally had outbursts that his parents reprimanded, much to his chagrin.